io GENERAL SCIENTIFIC WORK* 



GANOT. ELEMENTARY TREATISE ON PHYSICS; 



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NATURAL PHILOSOPHY FOR GENERAL READERS 

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GIBSON. A TEXT-BOOK OF ELEMENTARY BIOLOGY. 



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GOODEVE. WORKS by T. M. GOODEVE, M.A., Barrister-at- 



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PRINCIPLES OF MECHANICS. New Edition, re-written and 

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THE ELEMENTS OF MECHANISM. New Edition, re-written 

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A MANUAL OF MECHANICS : an Elementary Text-Book for 

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HELMHOLTZ. WORKS by HERMANN L. F. HELMHOLTZ, 



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ON THE SENSATIONS OF TONE AS A PHYSIOLOGICAL 

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Edition ; with numerous additional Notes, and a new Additional Appendix, 

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